CA1302730C - Transducer - Google Patents

Transducer

Info

Publication number
CA1302730C
CA1302730C CA000541218A CA541218A CA1302730C CA 1302730 C CA1302730 C CA 1302730C CA 000541218 A CA000541218 A CA 000541218A CA 541218 A CA541218 A CA 541218A CA 1302730 C CA1302730 C CA 1302730C
Authority
CA
Canada
Prior art keywords
monitoring means
oscillation
coil
natural frequency
monitored
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
CA000541218A
Other languages
English (en)
French (fr)
Inventor
Frans J. Kruger
Philip E. Galasko
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Application granted granted Critical
Publication of CA1302730C publication Critical patent/CA1302730C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
    • G01N29/02—Analysing fluids
    • G01N29/036—Analysing fluids by measuring frequency or resonance of acoustic waves
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C23/00—Devices for measuring, signalling, controlling, or distributing tyre pressure or temperature, specially adapted for mounting on vehicles; Arrangement of tyre inflating devices on vehicles, e.g. of pumps or of tanks; Tyre cooling arrangements
    • B60C23/02—Signalling devices actuated by tyre pressure
    • B60C23/04—Signalling devices actuated by tyre pressure mounted on the wheel or tyre
    • B60C23/0491—Constructional details of means for attaching the control device
    • B60C23/0493—Constructional details of means for attaching the control device for attachment on the tyre
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
    • G01D5/12—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means
    • G01D5/243—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the phase or frequency of AC
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K7/00—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements
    • G01K7/34—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements using capacitative elements
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L17/00—Devices or apparatus for measuring tyre pressure or the pressure in other inflated bodies
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L9/00—Measuring steady of quasi-steady pressure of fluid or fluent solid material by electric or magnetic pressure-sensitive elements; Transmitting or indicating the displacement of mechanical pressure-sensitive elements, used to measure the steady or quasi-steady pressure of a fluid or fluent solid material, by electric or magnetic means
    • G01L9/0001—Transmitting or indicating the displacement of elastically deformable gauges by electric, electro-mechanical, magnetic or electro-magnetic means
    • G01L9/0008—Transmitting or indicating the displacement of elastically deformable gauges by electric, electro-mechanical, magnetic or electro-magnetic means using vibrations
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2291/00—Indexing codes associated with group G01N29/00
    • G01N2291/02—Indexing codes associated with the analysed material
    • G01N2291/025—Change of phase or condition
    • G01N2291/0256—Adsorption, desorption, surface mass change, e.g. on biosensors

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Acoustics & Sound (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Power Engineering (AREA)
  • Measuring Fluid Pressure (AREA)
  • Magnetic Resonance Imaging Apparatus (AREA)
  • Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
CA000541218A 1986-07-04 1987-07-03 Transducer Expired - Lifetime CA1302730C (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
ZA864988 1986-07-04
ZA86/4988 1986-07-04
ZA869672 1986-12-23
ZA86/9672 1986-12-23

Publications (1)

Publication Number Publication Date
CA1302730C true CA1302730C (en) 1992-06-09

Family

ID=27137217

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000541218A Expired - Lifetime CA1302730C (en) 1986-07-04 1987-07-03 Transducer

Country Status (5)

Country Link
US (1) US4953393A (de)
EP (1) EP0254445B1 (de)
CA (1) CA1302730C (de)
DE (1) DE3775129D1 (de)
ES (1) ES2028870T3 (de)

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5146203A (en) * 1990-10-15 1992-09-08 Leonid Simuni Automobile for racing
DE4033053C1 (de) * 1990-10-18 1992-03-05 Hottinger Baldwin Messtechnik Gmbh, 6100 Darmstadt, De
GB9107462D0 (en) * 1991-04-09 1991-05-22 Fluidrive Eng Co Ltd Measuring temperature
SE470561B (sv) * 1992-12-23 1994-08-22 Ove Linde Sätt vid övervakning av sträckningsförhållanden vid en fluidbehållare, särskilt en stomipåse jämte en anordning för genomförande av sättet
US5541574A (en) * 1993-12-22 1996-07-30 Palomar Technologies Corporation Transponder system for communicating with a vehicle tire
GB2307044A (en) * 1995-11-07 1997-05-14 John Michael Jessop Tyre mileage monitoring apparatus and method
US5749984A (en) * 1995-12-29 1998-05-12 Michelin Recherche Et Technique S.A. Tire monitoring system and method
US5971046A (en) 1997-09-17 1999-10-26 Bridgestone/Firestone, Inc. Method and apparatus for bonding an active tag to a patch and a tire
US7009506B2 (en) * 1998-02-10 2006-03-07 Bridgestone Firestone North American Tire, Llc Electronic monitoring device and patch assembly
US6030478A (en) 1998-02-10 2000-02-29 Bridgestone/Firestone, Inc. Method and apparatus for removably inserting an electric tire tag into a tire
US6244104B1 (en) 1998-12-04 2001-06-12 Bridgestone/Firestone Research, Inc. Method for preparing an innerliner of a pneumatic tire for the quick bonding of an electronic monitoring device
US6474380B1 (en) 1999-04-29 2002-11-05 Bridgestone/Firestone North American Tire, Llc Pneumatic tire and monitoring device including dipole antenna
US6970076B1 (en) 2000-01-14 2005-11-29 Schrader-Bridgeport International, Inc. Method and apparatus for communication of data in a remote tire monitoring system
US8266465B2 (en) 2000-07-26 2012-09-11 Bridgestone Americas Tire Operation, LLC System for conserving battery life in a battery operated device
US7161476B2 (en) 2000-07-26 2007-01-09 Bridgestone Firestone North American Tire, Llc Electronic tire management system
JP4231254B2 (ja) * 2002-08-02 2009-02-25 横浜ゴム株式会社 タイヤの歪み状態検出方法、歪み状態検出装置及びそのタイヤ
JP4255048B2 (ja) * 2002-08-02 2009-04-15 横浜ゴム株式会社 タイヤの歪み状態検出方法、歪み状態検出装置及びそのセンサユニット並びにこれを備えたタイヤ
US7202778B2 (en) * 2003-08-25 2007-04-10 Rosemount Aerospace Inc. Wireless tire pressure sensing system
CA2511272C (en) 2004-06-30 2013-12-31 Socpra Sciences Et Genie S.E.C. Sensor arrays based on electronic oscillators
US9620283B2 (en) 2014-02-27 2017-04-11 GM Global Technology Operations LLC Low cost wireless (resistive) sensor based on impedance coupling/modulation using MRC

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2982127A (en) * 1957-06-07 1961-05-02 George F Cummings Jr Strain gage
DE2262032C3 (de) * 1972-12-19 1975-12-11 Industrie-Automation Gmbh & Co, 6900 Heidelberg Elektromechanischer Kraft- oder DruckmeBwandler
SE410123B (sv) * 1978-01-31 1979-09-24 Ahlstrom Bengt Tryckkennande anordning med minst en till en reaktansberoende detekteringskrets, foretredesvis oscillatorkrets, ansluten ledarslinga
US4335608A (en) * 1980-06-23 1982-06-22 Wood Russell J Submersible pressure transducer device
US4409586A (en) * 1981-05-26 1983-10-11 Hochstein Peter A Tire condition monitor converter
US4389884A (en) * 1981-06-15 1983-06-28 Gianluigi Agulia Remote tire pressure indicator
DE3205705C2 (de) * 1982-02-17 1986-04-24 Jakob Dipl.-Ing. 8025 Unterhaching Schillinger Einrichtung zur Messung einer physikalischen Größe mit einer verformbaren Feder
US4578992A (en) * 1982-11-05 1986-04-01 Philip E. Galasko Detection of a low pressure condition of a vehicle tire
EP0108176A1 (de) * 1982-11-05 1984-05-16 Philip Elliot Galasko Feststellung eines Unterdruckzustandes eines Fahrzeugluftreifens

Also Published As

Publication number Publication date
DE3775129D1 (de) 1992-01-23
EP0254445A1 (de) 1988-01-27
ES2028870T3 (es) 1992-07-16
EP0254445B1 (de) 1991-12-11
US4953393A (en) 1990-09-04

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Legal Events

Date Code Title Description
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